Miriam O'Callaghan says she is too busy to even think of taking on her own daily radio show - for the time being.

The Prime Time host is filling in for Sean O'Rourke on his RTE Radio 1 morning programme, which has been renamed Today With Miriam for the summer months.

"I think at the moment I'm fine because I have Prime Time twice a week and my youngest boy is still 11 and I do Sunday shows, so at the moment this works perfectly but in a year or two you never know," the popular presenter said.

O'Rourke has taken a break for the summer, saying that although he enjoyed his job, it could also be "pretty relentless". He will return in the autumn.

O'Callaghan has enjoyed her time filling in on the show so far.

"It's a great programme and it's an A team, like they're an amazing team. There's so many items in two hours. I love it," she told the Herald.

"I loved it from the beginning but I'm only minding it for Sean. He's up sitting beside me and it's kind of who I am. I like lots of different things.

"I like politics, I also like Love Island, I like sport. I just like a lot of different things."

O'Callaghan says she is looking forward to the upcoming presidential election, describing it as "so exciting".

But she says conducting the presidential debates is quite stressful.

"Television is quite pressurised. The cameras create a pressure and when you've got a camera it obviously makes you more self-conscious," she said.